EP 3019715 B1 20200115 - METHOD TO REPAIR VARIABLE VANES
Title (en)
METHOD TO REPAIR VARIABLE VANES
Title (de)
VERFAHREN ZUM REPARIEREN VARIABLER SCHAUFELN
Title (fr)
PROCÉDÉ DE RÉPARATION D'AUBES À INCIDENCE VARIABLE
Publication
Application
Priority
- US 201361845386 P 20130712
- US 2014044224 W 20140626
Abstract (en)
[origin: WO2015006056A1] A variable vane having an airfoil, an inner trunnion shaft and an outer trunnion shaft, with the outer trunnion shaft having a threaded hole and a groove extending around a circumference of the outer trunnion shaft is repaired by removing a portion of the outer trunnion shaft leaving a shaft stub. A repair detail is prepared having an outer peripheral shaft portion with a nominal outer diameter. The repair detail further has a pilot portion extending forwardly and having a smaller outer diameter than an outer diameter of the nominal outer diameter. The shaft stub has a remaining bore portion, which is a portion of the threaded hole. The pilot portion is sized to be received within the remaining bore portion. The pilot is inserted into the remaining bore portion. The repair detail is welded to the shaft stub. A repaired variable vane is also disclosed.
IPC 8 full level
F01D 25/28 (2006.01); B23K 15/00 (2006.01); B23K 26/32 (2014.01); B23P 6/00 (2006.01); B23P 15/00 (2006.01); F01D 5/00 (2006.01); F01D 17/16 (2006.01); F02C 7/00 (2006.01); F02D 9/02 (2006.01); F04D 29/56 (2006.01); B23K 101/00 (2006.01)
CPC (source: EP US)
B23K 15/0006 (2013.01 - US); B23K 15/0093 (2013.01 - EP US); B23K 26/32 (2013.01 - EP US); B23P 6/002 (2013.01 - US); B23P 6/005 (2013.01 - EP US); F01D 5/005 (2013.01 - EP US); F01D 17/162 (2013.01 - EP US); F01D 25/285 (2013.01 - EP US); F04D 29/563 (2013.01 - EP US); B23K 2101/001 (2018.07 - EP US); F05D 2230/233 (2013.01 - EP US); F05D 2230/80 (2013.01 - EP US); Y02T 50/60 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2015006056 A1 20150115; EP 3019715 A1 20160518; EP 3019715 A4 20170315; EP 3019715 B1 20200115; JP 2016525641 A 20160825; JP 6125728 B2 20170510; PL 3019715 T3 20200518; SG 11201509986S A 20160128; US 10107101 B2 20181023; US 2016130946 A1 20160512
DOCDB simple family (application)
US 2014044224 W 20140626; EP 14823870 A 20140626; JP 2016525362 A 20140626; PL 14823870 T 20140626; SG 11201509986S A 20140626; US 201414900680 A 20140626